I'm really surprised they haven't redone the Generations Rhinox and Rattrap toys in their Transmetal modes, especially considering the toy companies proclivities for reusing molds.
One of my biggest beefs - check that, prob the biggest (after I finally learned that BW Op and Megs were not meant to be new versions of G1 Op & Megs - just new characters honouring the names) beef - with Beast Wars is that I personally don't like organic looking alt-modes. It's why these are pretty much the only Generations figures I don't own. However I'd snap up the Transmetal versions in a second if they made them